Stirrup construction



April 17, 1934.

? NVENTOR ZZ '7' 14 14 ir 'ZJ-2%@ ATTORNEY'S lli Patented Apr. 17, 1934 6 Claims.

My invention relates to improvements in stirrup constructions, and it consists in the combinations, constructions, and arrangements herein described and claimed.

An object of my invention is to provide a stirrup construction of the type adapted for concrete reinforcing in building construction and which has novel means whereby the units may be collapsed into a compact form.

A further object of my invention is to provide a device of the type described which has novel means for centering the unit in the desired position between the pans upon the form.

A further object of my invention is to provide a device of the type described which has novel means for readily positioning a plurality of stirrups in the desired position.

A further object of my invention is to provide a device of the type described which has novel means for correctly positioning the reinforcing irons or bars.

Other objects and advantages will appear in the following speciiication, and the novel features of the invention will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawing forming part of this application, in which Figure l is a side elevation of one of the units lof my device,

Figure 2 is an end elevation of the unit as positioned upon the form,

,'Figure 3 is a section along the line 3 3 of Figure 1,

Figure 4 is a top plan view of the unit shown in collapsed position,

Figure 5 is a diagrammatical illustration of the device as applied to the form, and Y Figure 6 is another form of connecting the J'stirrups to each other.

1li stirrup as shown at the right hand side of the device of Fig. 1, part being broken away.

In carrying out my invention I provide a pair of spaced-apart retaining members 1 which have stamped-out lip portions 2 at spaced-apart po- `sitions therein. A pair of spacing and retaining members 3 are also provided with stamped-out lip portions 4 at spaced-apart positions. The spacing members 3 are provided with outwardly extending integral arm portions 5 for a purpose YIhereinafter described.

A plurality of substantially U-shaped strrups 6 is provided with outwardly extending end portions 7. Desired groups of the lips 2 and 4 may be bent around the stirrups 6 for pivotally securing the stirrups to the members 1 and 3 as 60 illustrated in Figures 1 and 3.

Supporting end stirrups 8 and 9 are provided with retaining lugs or portions 10 adjacent the upper ends thereof, and spaced-apart retaining lugs or portions 11 near the lower ends thereof. 65 Groups of the members 2 may be bent around the stirrups 8 and 9 about the lugs 10 for pivotally connecting the stirrups 8 and 9 to the retaining members 1. Groups of the lips 4 may be bent around the stirrups 8 and 9 between the 70 lugs 11 for pivotally connecting the stirrups 8 and 9 to the spacing members 3. The stirrups 8 and 9 are provided with upwardly bent portions l2 whichform supporting legs 13. The connecting portions 14 of the stirrups 8 and 9 are bent 75 upwardly at the centers thereof as illustrated in Figure 2. The connecting portion 14 in association with the mechanism 13 may be defined as a chair. The upper ends of the stirrups 8 are bent inwardly as illustrated at 15 in Figure 2. 80 The upper ends of the stirrups 9 are bent outwardly to conform to the upper ends of the stirrups 6.

From the foregoing description of the various parts oi the device, the operation thereof may be S5"` readily understood. The units may be disposed in the collapsed form prior to their being assembled upon a form. In Figure 2, I have shown a form illustrated in dotted lines at 16. The ordinary U-shaped pans are shown in dotted lines V at 17 as they are mounted upon the form. In assembling the units, they are rst adjusted to their open positions and then placed upon the form 16. The units may be readily adjusted to their open positions by moving the members 1 or 95j 3 away from each other or by swinging one of the various stirrups about its pivot. The arm members 5, as they project outwardly, tend to space the unit centrally between the pans 17. When placing the reinforcing bars, indicated in dotted lines at 18 in Figure 2, between the pans 17, they may be disposed upon the cross members 14 and in so doing they will be positioned one at each side of the stirrups, as illustrated in Figure 2. These bars will be retained in this position due to the shape of the cross members 14.

If it is desired to place only one bar upon the cross members 14 for a certain construction, the cross members 14 may be bent downwardly so as to retain the bar at the center thereof. 11.0

In Figure 5, I have illustrated a plurality of units disposed end to end and have illustrated the manner in which the reinforcing bars 18 may extend over the invvardly projecting end portions l5 of the stirrups 8 and then extend downwardly and rest upon the cross members of stirrups 6.

With this construction a plurality of stirrups when not in use may be collapsed into a compact form, yet when desired to be used the stirrups may be readily and simultaneously disposed in the desired position. The arms 5 Will prevent the units 'from being displaced When the concrete is poured over the pans 1'? and upon the form 16.

In Figure 6, I have shown another means whereby the members 1 and 3 may be connected to the stirrups 6, 8, and 9. In Figure 6 the members 1 and 2 are provided with openings 19 through which the stirrups 6, 8, and 9 may extend so that the members l and 2 will be positioned as indicated. The members 1 and 3 may be held in the desired position by Welding lugs 20 to the stirrups for supporting these members.

I claim:

1. A stirrup construction comprising a plurality of supporting members, a plurality of stirrups loosely connected with said supporting members, and an end stirrup loosely connected with said supporting members and being upwardly bent to form an integral chair portion providing for the spaced positioning of reinforcing rods.

2. A stirrup construction comprising a plurality of supporting members, a plurality of stirrups loosely connected with said supportingmembers,

and an end stirrup loosely connected with said supporting members and being provided with a chair portion, certain of said supporting members being provided with spacing portions, said chair portion being formed to provide spaced po- `sitioning and supporting means for reinforcing means.

3. A stirrup construction comprising a plurality or supporting members, a plurality of stirrups loosely connected With said supporting members, and end stirrups loosely connected with said supporting members and being bent to form integral chair portions comprising downwardly extending legs and seats disposed in a plurality of elevations for reinforcing bars.

4. A stirrup construction comprising a plurality of supporting members, a plurality of stirrups connected with said supporting members, and end stirrups connected with said supporting members and being provided with chair portions, said stirrups being provided with laterally projecting portions and one of said end stirrups being provided vvith laterally projecting portions arranged oppositely with respect to said first-named laterally projecting portions.

5. A collapsible stirrup construction comprising a plurality of supporting members, a plurality or" stirrups pivotally connected With said supporting members and being provided with bent portions for spacedly positioning a plurality of reinforcing rods, certain of said supporting members being provided with spacing means for centering the entire stirrup construction intermediate a pair of form members.

6. In a collapsible stirrup construction the combination of pairs o supporting members having integral bent lips struck therefrom at intervals along the length thereof, stirrups comprising spaced arms, each arm of each stirrup being dennitely and pivotally mounted by corresponding lips on certain pairs of said supporting members, the stirrups thus connected serving in turn to constrain said pairs to certain positions, integral means on certain supporting members to space the device from cooperating mold forms and integral bent portions on certain of said stirrups providing chairs for reinforcing rods, those portions of the stirrups beneath the chairs providing legs whereby the device is spaced from a soiiit.

SAMUEL KLEIN. 

